Microsoft 1 manual Subsystem Object Counter Exchange Comments

60Microsoft Exchange 2000 Operations Guide — Version 1.0

Table 4.2 Subjects and Associated Objects and Counters
Subsystem	Object	Counter	Exchange Comments
Disk	Logical Disk	% Free Disk Space
	Physical Disk	% Disk Time	Usually unreliable for RAID systems,
			so rarely applicable
	Physical Disk	Disk Reads/sec
	Physical Disk	Disk Writes/sec
	Physical Disk	Current Disk	Should occasionally dip to zero
		Queue Length
	Physical Disk	Avg secs per read	Should be analogous to published
			disk speed
	Physical Disk	Avg secs per write	Should be analogous to published
			disk speed or 1-2ms if you have write
			back caching enabled on your RAID
			controller
Memory	Memory	Committed Bytes
	Memory	Pages/sec	Exchange 2000 makes heavy use of a
			pagefile. A large amount of paging is
			not in itself an indication of a problem.
	Memory	Page Reads/sec	Value should generally be below 100.
			If the value is consistently high, you
			may need to increase system
			memory.
	Memory	Page Writes/sec	Value should generally be below 100.
			If the value is consistently high, you
			may need to increase system
			memory.
	Paging File	% Usage	You may need to increase the size of
			your pagefile for Exchange. Try to
			keep this counter below 70%.
	Process	Page Faults/sec